초록 ▼

A shear detection circuit includes a resistive element in series with another resistor for providing an electrical signal at a node proportional at the value of the resistors when a voltage potential is applied to the detection circuit. The electrical signal is compared to a known value to permit de

A shear detection circuit includes a resistive element in series with another resistor for providing an electrical signal at a node proportional at the value of the resistors when a voltage potential is applied to the detection circuit. The electrical signal is compared to a known value to permit detection of a severed shear pin or an open or short circuit in the detection circuit. The electrical signal is monitored by a computer for displaying the status of the shear pin and the detector circuit and for storing the status of the shear pin and the shear detection circuit for maintenance or repair.

대표청구항 ▼

An electrical detection circuit for a shearing action, comprising: a first resistor positioned perpendicular to a shear line of a device shearing under a mechanical load, said first resistor being destructible when said device shears along said shear line and said first resistor being electrically i

An electrical detection circuit for a shearing action, comprising: a first resistor positioned perpendicular to a shear line of a device shearing under a mechanical load, said first resistor being destructible when said device shears along said shear line and said first resistor being electrically insulated from said device; said first resistor being connected in series between second and third resistors, said second and third resistors being positioned beyond said shear line; a first node located between said first and second resistors and a second node located between said first and third resistors, said nodes being positioned beyond said shear line such that a voltage applied to the terminals of said series connected resistors produces an electrical signal es1 at said first node in proportion to the value of said first and second resistors and an electrical signal es2 at said second node in proportion to the value of said first and third resistors, whereby the values of es1 and es2 allow for the detection of the shearing of said first resistor and the presence of wire anomalies in said detector circuit.